The intake is suppose to give 13-15 hp and torque. I haven't dyno tested it, but seems to move faster, especially at higher speeds. It definetly founds ferocious!! Hit the gas, and it growls. Seems to have same MPG, but since installing I've been hitting it more. Just put 91 no ethanol octane in, and seems like I will be getting 50-60 miles more a tank, which is 4-5 more a gallon. Installation is a little harder then expected. You have to angle it in and assemble it piece by piece (tried assmebling it, and then install, didn't happen. Also, be careful when putting screws in. You can easily drop one down the intake into the engine (very tight angles to bolt in).